package com.wx.chapter14.set_;

import java.util.HashSet;

/**
 * @Author : 佩萁
 * Description :
 * @Create : 2023/7/30 - 21:34
 */
public class HashSetSource {
    public static void main(String[] args) {
        HashSet hashSet = new HashSet();
        hashSet.add("java");
        hashSet.add("php");
        hashSet.add("java");
    }
}